Nikolai Glushkov believed he was poisoned five years before his murder

A Russian exile who was murdered in London was previously targeted by two mystery men from Moscow who brought him champagne.Former Aeroflot deputy director Nikolai Glushkov, 68, was apparently strangled in his home in New Malden, southwest London, a week after the novichok poisonings of Sergei Skripal and his daughter Yulia.Police are working on the theory that Mr Glushkov, like ex-Russian spy Mr Skripal and his daughter, was targeted by Russia's spy agencies.